.key-trainer{min-height:100vh;background:radial-gradient(circle at 12% 5%,var(--mint),transparent 27%),var(--cream);padding-bottom:70px}.trainer-header{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 max(5vw,24px);background:#ffffffcc;border-bottom:1px solid var(--line)}.back-link{color:var(--green-dark);text-decoration:none;font-weight:700;font-size:14px}.back-link i{margin-right:7px}.trainer-intro{text-align:center;max-width:720px;margin:55px auto 30px;padding:0 20px}.trainer-intro h1{font:900 clamp(40px,5vw,62px)/1.05 Nunito;letter-spacing:-2px;margin:12px 0}.trainer-intro h1 span{color:var(--green)}.trainer-intro p{color:var(--muted);font-size:17px}.trainer-card{width:min(920px,calc(100% - 32px));margin:auto;background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:0 22px 60px #17373317}.trainer-controls{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:20px}.trainer-controls label{font-size:13px;font-weight:800}.trainer-controls select{margin-left:9px;border:1px solid var(--line);border-radius:9px;padding:9px;background:var(--cream);color:var(--ink);font-weight:700}.trainer-time{font:900 20px Nunito;background:var(--mint);color:var(--green-dark);padding:8px 13px;border-radius:10px}.letter-challenge{text-align:center;padding:25px 0 18px}.letter-challenge small{font-weight:800;letter-spacing:1.5px;color:var(--muted)}.letter-challenge strong{display:block;font:900 82px/1.1 Nunito;color:var(--green);text-shadow:0 5px 0 var(--mint)}.letter-challenge p{min-height:20px;margin:6px 0 0;color:var(--green-dark);font-weight:700;font-size:14px}.letter-challenge p.is-error{color:#d74f48}.virtual-keyboard{background:#edf2ee;padding:23px 14px 14px;border-radius:19px;box-shadow:inset 0 2px 3px #17373312}.keyboard-row{display:flex;justify-content:center;gap:8px;margin-bottom:8px}.keyboard-row button{width:clamp(30px,7vw,61px);height:54px;border:1px solid #d7dfd9;border-bottom:4px solid #c5d1c9;border-radius:10px;background:#fff;color:var(--ink);font:900 17px Nunito;transition:.12s}.keyboard-row button.highlighted{color:#fff;background:var(--green);border-color:var(--green-dark);border-bottom-color:var(--green-dark);transform:translateY(-3px);box-shadow:0 9px 22px #3f9b796b;animation:keyPulse 1s infinite}@keyframes keyPulse{50%{box-shadow:0 9px 28px #3f9b79bf}}.hand-guide{display:flex;justify-content:space-around;color:var(--muted);font-size:11px;margin-top:8px}.trainer-stats{display:grid;grid-template-columns:repeat(4,1fr);margin:22px 0;border:1px solid var(--line);border-radius:13px;overflow:hidden}.trainer-stats span{text-align:center;padding:13px;border-right:1px solid var(--line)}.trainer-stats span:last-child{border:0}.trainer-stats small{display:block;color:var(--muted);font-size:10px;text-transform:uppercase;font-weight:800;letter-spacing:.7px}.trainer-stats b{display:block;font:900 23px Nunito;margin-top:3px}.trainer-start{display:block;margin:auto;min-width:285px}.trainer-tip{text-align:center;color:var(--muted);font-size:12px;margin:15px 0 0}.level-path{width:min(1100px,calc(100% - 32px));margin:0 auto 24px;display:grid;grid-template-columns:repeat(4,1fr);grid-gap:10px;gap:10px}.level-path button{display:flex;align-items:center;gap:11px;text-align:left;border:1px solid var(--line);border-radius:13px;background:#fff;padding:12px;color:var(--ink);transition:.2s}.level-path button>i{width:31px;height:31px;display:grid;place-items:center;border-radius:9px;background:var(--mint);color:var(--green)}.level-path button span{display:flex;flex-direction:column;min-width:0}.level-path button b{font:800 13px Nunito}.level-path button small{font-size:10px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.level-path button.active{border-color:var(--green);box-shadow:0 0 0 3px var(--mint)}.level-path button.locked{opacity:.55;background:#f2f2ef;cursor:not-allowed}.level-path button.locked>i{background:#e3e5e3;color:#8b9996}.current-level{display:flex;flex-direction:column}.current-level small{font-size:10px;letter-spacing:1px;color:var(--muted);font-weight:800}.current-level b{font:800 18px Nunito;margin-top:3px}.keyboard-row button.inactive{opacity:.38}.keyboard-row button.available{opacity:1}.keyboard-row button.space-key{width:min(360px,65vw);font-size:11px}.letter-challenge strong.space-target{font-size:40px;padding:18px 0}.trainer-actions{display:flex;justify-content:center;align-items:center;gap:12px}.next-level{border:1px solid var(--green);border-radius:12px;background:#fff;color:var(--green-dark);font-weight:800;padding:14px 21px}.below-goal{color:#d74f48!important}@media(max-width:850px){.level-path{grid-template-columns:repeat(2,1fr)}}@media(max-width:650px){.level-path{grid-template-columns:1fr 1fr}.level-path button{padding:9px}.level-path button>i{display:none}.level-path button b{font-size:11px}.trainer-actions{flex-direction:column}.trainer-actions button{width:min(100%,285px)}.virtual-keyboard{overflow-x:auto}.keyboard-row{min-width:470px}.keyboard-row:last-of-type{min-width:0}.trainer-header{height:66px}.back-link{font-size:0}.back-link i{font-size:18px}.trainer-card{padding:18px 10px}.trainer-controls{padding-inline:7px}.trainer-controls label{font-size:0}.trainer-controls select{font-size:12px;margin:0;max-width:210px}.keyboard-row{gap:4px}.keyboard-row button{height:44px;font-size:14px;border-radius:7px}.hand-guide{display:none}.trainer-stats{grid-template-columns:1fr 1fr}.trainer-stats span:nth-child(2){border-right:0}.trainer-stats span:nth-child(-n+2){border-bottom:1px solid var(--line)}}